Nepean Bay Weather Forecast

    • 13
    • 23

    Partly cloudy

    • 16
    • 27

    Partly cloudy

    • 17
    • 28

    Late shower or two

    • 15
    • 25

    Shower or two

    • 11
    • 24

    Partly cloudy

    • 12
    • 21

    Partly cloudy

    • 13
    • 21

    Partly cloudy

Today 29 Mar Kangaroo Island

Partly cloudy. Winds east to northeasterly 15 to 25 km/h turning northerly in the morning then tending northeasterly 15 to 20 km/h in the evening. Overnight temperatures falling to around 13 with daytime temperatures reaching the low to mid 20s.

Investigator Strait Coastal Waters

Wind
Easterly 10 to 15 knots tending north to northeasterly in the morning then tending easterly in the evening.
Seas
Below 1 metre.
1st Swell
West to southwesterly below 1 metre, increasing to 1 to 1.5 metres through the Backstairs Passage.
Weather
Partly cloudy.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Nepean Bay Temperature Statistics View More

March Temperature

Kingscote Airport (7km)

  • Lowest 22 March, 2026

    7 °C

  • Average March

    17.7 °C

  • Highest 23 March, 2026

    31.9 °C

Climate (2021–Present)

Kingscote Airport (7km)

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  • Average Low 2021–2026

    9.2 °C

  • Average 2021–2026

    14.8 °C

  • Average High 2021–2026

    21.1 °C
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